Bike starts fine but after it warms up it has to cool down before it starts have just had the valves adjusted

Hello Carl, I'm not familiar with your bike model. I would suggest you check the valve clearance .

Valve clearence is to tight, compression then becomes zero when hot and when cooled down again compression is back. Adjust clearence maybe 0.05 mm more up, but check all valves an all cylinders.
You could have a burnt seat too.

If bike has a choke it might be sticking as a result of the carby refit. Also floats may be sticking.

I think I would start with the valves.It sounds like they need to be adjusted to eliminate the play on a cold atart up.A worn chain tensioner doesn't care if its hot or cold.Do an oil change on the bike as well,the valves might be hanging up a bit.happy riding

the igntion module on the right side of the motor is probably bad its a typical issue with sportsters, if you heat the area around the timer cover with a heat gun and then try to start the bike and it wont start then you know its the ignition module on the sensor plate.

Assuming all other things are working properly(carb and ignition), check the valve clearances. Specifically look for any valve that doesn't have any clearance. This is very common, especially with bikes that have alot of time on them. If so, have the valve(s) adjusted, but keep an eye on any that had closed up. If they close up again in the near future, you'll have to have the valve replaced.

When the valves do this, they are held slightly open all the time and let your compression bleed off, causing it to be near impossible to start. If the bike does start, it will be much easier to start again once it's warmed up. But back to the same when it cools off.


*Help me out. Rate me!

is it powerfull when it becomes hot or is it sluggish :?

idle adjust?
there SHOULD be an adjuster under the seat or gastank within easy reach. Clockwise to increase rpm, ccl to decrease rpm. idle around 1400rpm when engine is at normal operating temp. Good luck!

This really sounds like a need to replace the intake gaskets. When the bike warms up the gaskets loose their seal leading to a lean condition that makes it almost impossible to start, until bike cools down. Gaskets are cheap, this would be my first place to begin. Hope this helps.

JP